1. FIP-CEB. High Strength Concrete State of the Art Report Fib 197. London; 1990.
2. Behavior and design of large openings in reinforced concrete beams;Nasser;ACI J,1967
3. Collapse loads of R/C beams with large openings;Mansur;J Struct Eng,1984
4. Mansur MA, Tan K-H. Concrete beams with openings: analysis and design. Boca Rotan, Florida, USA: CRC Press; 1999. .
5. Mansur MA. Effect of Openings on the Behaviour and Strength of R/C Beams in Shear. Cem Concr Compos 1998;20:477–86. .